MAN TG3 Central Lubrication Wiring Diagram – TGX/TGS Euro 6d (Q4 2020)

This OEM schematic details the Central Lubrication System (Zentralschmierung) used in MAN TG3 TGX/TGS Euro 6d trucks, sourced from MAN Truck & Bus SE (Werk München) and dated Q4 2020.

The diagram covers:

• Zentralschmierpumpe (M205) – electrically driven central grease pump
• Full integration via RIO module (AP020)
• Sensor lines for grease level feedback, activation, and saddle coupling status
• CAN Low/High signals from RIO: A/62, A/63
• Plug-and-play points for diagnostics and retrofitting via standard FHS terminal connectors

Designed for maintenance professionals, this diagram is perfect for:

• Diagnosing pump activation or failure
• Planning grease system retrofits or troubleshooting
• Understanding CAN interface between lubrication control and RIO
• Enhancing uptime on MAN TGX/TGS heavy-duty platforms

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